// body{
//     background-color: skyblue;
// }
.main{
    position: relative;
  
    video{
        width: 100%;
        height: 100%;
        background-color: black;
    }
    .main_coursetitle{
        position: absolute;
        bottom: 30px;
        left: 20px;
        color: white;
      h2 {
        font-size: 50px;
       }
      
    }
}
.footer{
    position: relative;
    .footer_div{
        height: 50px;
        display: flex;
        justify-content: space-around;
        align-items: center;
        position:absolute;
        width: 100%;
        i{
            font-size: 40px;
        }
    }
    .progress{
      height: 50px;
      width:20%;
      background-color: skyblue;
    }
}
//这是模态框区域
.mask1{
    display: none;
    background-color:rgba(1,142,196,0.7);
    top: 0px;
    bottom: 0px;
    left: 0px;
    right: 0px;
    position: absolute;
    h1{
        margin-top: 50px;
        font-size: 20px;
        padding: 0px 20px;
        color: #fff;
        width: 375px;
        margin: 0 auto;
        // overflow: hidden;
    }
    ul{
        width: 300px;
        color: white;
        position: absolute;
       
        top: 50%;
     
        left: 50%;
        transform: translate(-50%,-50%);
        .controls{
            display: flex;
            justify-content: space-between;
            .pause,.play{
                width: 100px;
                height: 100px;
                text-align: center;
              
                border-radius: 50%;
                background-color: skyblue;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
            }
            .pause{
                background-color: #25F4C6;
            }
            .play{
                background-color: #FF5354;
            }
            i{
                font-size: 30px;
            }
        }
        // 这是mask的下面区域的开始
        .usermessage{
          
            margin-top: 50px;
            // padding: 0px 50px;
            height: 100px;
          
            .img{
                border: 3px solid #fff;
                height: 100%;
                height: 100%;
                display: flex;
                border-radius: 15px;
                .img_left{
                    flex: 1;
                }
                img{
                      width: 100%;
                      height: 100%;
                    border-top-left-radius: 15px;
                    border-bottom-left-radius: 15px;
                }
                .current{
                    flex: 1;
                 width: 100%;
                 padding-top:20px ;
                    text-align: center;
                    p{
                        margin-top: 15px;
                        text-align: center;
                      
                    }
                }
            }
          
        }
    }

}
